Unknown identified

From: Matson, Robert (ROBERT.D.MATSON@saic.com)
Date: Thu Nov 30 2000 - 18:21:43 PST

  • Next message: Daniel Deak: "STS-97 launched"

    Hi Alexander,
    
    > In the night of the 29th to the 30th November I enjoyed Lacrosse 3 at
    22:45 
    > Local Time. It went nice like predicted with the Mag. of 3.1 .
    
    Actually, this was Lacrosse 3 R/B (the upper stage rocket body
    that launched Lacrosse 3).
    
    > At around 22:47:00 it passed under Procyon.
    
    Do you mean Sirius?  At 22:47:05 (UTC+13) it did indeed pass 2
    degrees below Sirius.
    
    > Cicra 10 to 15 seconds later I catched with my  binocs (12x50 5.8 deg
    field) about
    > 3 degrees under Lac3 an object with about the same magnitude and same
    speed,
    > but in the nearly absolut opposit direction.
    
    This was Cosmos 756 R/B -- it came quite close (angularly, that is)
    to Lacrosse 3 R/B at 22:47:20 (UTC+13) heading north.  It should
    have been moving pretty close to parallel to the eastern horizon.
    
    > 25 - 30 Seconds later the object disappeard in the NNE slowly, like a
    dissapaering
    > Iridium, still about 20 degres high. So it didn't loose much height in
    this time.
    
    Cosmos 756 R/B began to enter the earth's shadow at 22:47:45 and
    would have been completely shadowed by 22:47:54.
    
    Excellent report, Alexander.  More than enough information to
    determine the identity of your mystery satellite. :-) I can send
    you a GIF file showing the two tracks against the stars if you're
    interested.  --Rob
    
    
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